Intermediate Shaft and Stern Shaft for Tunnel Thruster
Brand: DEYUAN MARINE
Material: 20CrMnTi
Heat treatment: Carburizing and quenching process
Effective depth: (0.84 ~ 1.35) mm
Surface hardness: (58-63)HRC
Core hardness: (35 ~ 45) HRC
Life Time: 20 years